If the touchscreens are used exclusively for Linchpin Touch, a processor equivalent to Intel Core i3 (2Ghz +, e.g., i3 6100U) is enough. For security we recommend at least 8GB RAM.
Here we can recommend Intel Core i3 (2Ghz +) or equivalent / better and for security 1GB RAM.
The hardware should have an infrared or capacitive sensor technology. Both are equally suitable for Linchpin Touch.
A full-HD resolution of the screens (16: 9 / 1920x1080 pixels) is essential for an optimal presentation of the content.
As a browser, Google Chrome 56+ must run smoothly on the selected hardware.
The operating system should be one of the following (Minimum requirements):
Windows 7 or
OS X 10.9 (Mavericks) or
The popular Linux distributions in LTS (Ubuntu 14.04+, openSUSE 13.3+, Fedora Linux 24+)
Linchpin Touch requires Confluence version 5.10 or higher.
You are searching for a low-end solution which doesn't require expensive touch displays? Or do you want to try out Linchpin Touch before you buy it?
You can build one on your own: https://seibert.biz/portablelinchpintouchdevice